Content in the TECHNICAL category

Content (e.g. blog posts, information pages, and files/links) about the activities of the RRRA Technical Committee and the equipment/systems they maintain, along with technical topics of general interest.

QRM.guru Can Help With Interference

Do you need help resolving Amateur Radio intereference issues? QRM.guru
is here to help!

QRM.guru, sponsored by
The Amateur Radio Society of Australia Inc.,
is an educational and reference resource developed to assist Amateur Radio
operators mitigate RF noise issues. Although developed for VK hams, this
resource contains information useful worldwide.

QRM.guru is a responsive (i.e. “mobile friendly”) and comprehensive
resource intended to help hams with:

A harbinger of Solar Cycle 25?

On November 19, 2018, Dr. Tony Phillips reported in his
A Sunspot from the Next Solar Cycle article
that an ephemeral sunspot with a reversed magnetic field was detected by
Nasa’s Solar Dynamics Observatory at 21:00 UT on November 17th, 2018.
This sunspot matches two previously reported spots and suggests that the
“ slow transition between Solar Cycle 24 and Solar Cycle 25 appears to
be underway.”1

ARRL has taken a minor exception to the wording of a
September 24 FCC Enforcement Advisory
pertaining to the importation, marketing and sale of VHF
and UHF transceivers and is in discussion with FCC personnel to resolve the
matter. The Enforcement Advisory was in response to the importation into the
US of certain radio products that are not FCC certified for use in any radio
service, but identified as Amateur Radio equipment. 1